Stacktrace in mingw on Windows/multiplatform ?

[hughperkins]

Hi,

Random question: how can one obtain the stack-trace for unexpected exceptions in mingw or, preferably, multiplatform?

Edit: it seems like, if we were using gcc on linux, we'd have backtrace()/execinfo.h available. If we were using msvc on windows we'd have StackWalk. mingw seems not to have either

[Argh]

Moreover, it's not really working right now, which is a problem, since the current builds are very unstable at the moment.

[hughperkins]

Moreover, it's not really working right now, which is a problem, since the current builds are very unstable at the moment.

"It"? Stacktrace in linux?

[Argh]

Stacktrace, period, from my understanding. See my thread about this lower down.

[hughperkins]

Ah.... the cryptically named "stacktrace" thread

Oh... so mingw can create stacktraces???

Or is this a "core" which is then converted to a stacktrace by something like gdb?

Ideally, I'd like to be able to get a stacktrace following an exception, without having a full-blown uncaught-exception shutdown.

[hughperkins]

Ah... apparently stackwalk works in mingw. Interesting.

[Tobi]

Now I'm confused: do you mean creating stacktraces programatically from the crashing program or from an external debugger?

For programatically created stacktraces, that's what current Spring (build in MinGW!) already does, see:
https://spring.clan-sy.com/svn/spring/t ... andler.cpp

As you say yourself, this can be done in Linux using backtrace() and backtrace_symbols(), the latter of course being useless unless compiled with debugging symbols enabled.

As for debugging, there's GDB and a number of frontends (codeblocks too I thought?). I never tried any frontends on Windows though, on Linux I usually use KDevelop as IDE including GDB frontend.

[Tobi]

Moreover, it's not really working right now, which is a problem, since the current builds are very unstable at the moment.

Good point, probably forgot to move over the file with debugging symbols.

Will fix ASAP. Remember though that stacktraces created by nightly builds can not be passed to the stacktraceTranslator!